Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
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AfterAir Duct Cleaning Company in St. Helena, CA
Air duct cleaning in St. Helena costs between $450 and $890 for a whole-home system, with most ranch homes and Victorians landing in the $550 to $750 range. We’re Morton’s Air Duct Cleaning, and we’ve been doing this work since 2005, long enough to know that St. Helena homes carry a particulate load you won’t find in Napa proper or anywhere outside the vineyard corridor. Call (323) 918-4345 and we’ll give you a written price before anyone touches a register.
Why St. Helena Homes Are Different
St. Helena sits at the narrowest point of Napa Valley, hemmed in by the Mayacamas on one side and the Vaca range on the other. That geography does something specific to the air inside your ducts. Temperature inversions settle over the valley floor and hold ground-level particulate in place for days, sometimes weeks. Vineyard sulfur dust, harvest chaff, and whatever drifts off Silverado Trail gets trapped at breathing height instead of dispersing.
We open return-air plenums in homes along Spring Mountain Road and find a pale yellowish film coating the inside, the residue of elemental sulfur used as a powdery-mildew fungicide on surrounding vines. During spray season that film can build up visibly within a single season, and it’s corrosive. Older galvanized ductwork in the late-Victorian and Craftsman homes from the 1880s through 1920s was never meant to handle it, and many of those homes got forced-air retrofits mid-century with undersized flex-duct additions that trap fine agricultural particulate rather than moving it.
Then there’s the 2020 Glass Fire. It burned through the hills directly flanking town, and plenty of St. Helena homes still carry wildfire ash and smoke particulate embedded deep in their duct systems, even if the house itself never took flame damage. That combination, vineyard sulfur plus fire ash plus inversion-trapped dust, is why duct cleaning here is a different job than it is thirty miles south.
Our Main St. Helena Services
St. Helena homeowners call us for two things, air duct cleaning and dryer vent cleaning, and each has its own page with local pricing and detail.
Air Duct Cleaning in St. Helena
We run a Rotobrush agitation system through every supply and return line, then pull a HEPA-filtered vacuum on the trunk lines to capture what we loosen. In St. Helena that almost always includes a sulfur film layer that needs agitation, not just vacuum, to release from the duct walls. Shoe covers and drop cloths go down before anything else happens, and the written price is in your hand before the equipment comes off the truck. Details are on the Air Duct Cleaning in St. Helena page.
Dryer Vent Cleaning in St. Helena
Dryer vents here clog faster than most people expect, partly because the same valley particulate that settles in ducts also gets pulled through the dryer’s intake, and partly because older St. Helena homes often route vents through long, angled runs with more surface area for lint to catch on. We clean the full run from dryer to exterior termination and check airflow at the end so you can see the difference. The Dryer Vent Cleaning in St. Helena page has the full breakdown.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in St. Helena
We stock and service the brands installed across Napa Valley, including Honeywell media cabinets, Aprilaire filters and humidifiers, and Guardsman UV systems. Parts for these are common in the valley, so turnaround is usually days, not weeks. See our brands for the full list.
Pricing for Air Duct Cleaning Company in St. Helena, CA
| Service | Typical range in St. Helena |
|---|---|
| Whole-home air duct cleaning (up to 10 vents) | $450 - $690 |
| Whole-home air duct cleaning (11-20 vents) | $590 - $890 |
| Return-air plenum cleaning | $120 - $220 |
| Supply register deep clean (per register) | $15 - $30 |
| Blower motor housing cleaning | $80 - $150 |
| Dryer vent cleaning (single story, short run) | $95 - $180 |
| Dryer vent cleaning (two story or long run) | $150 - $300 |
| Dryer vent cleaning (roof termination) | $175 - $325 |
| Flex-duct replacement (per run) | $220 - $450 |
| Duct sealing (per access point) | $75 - $150 |
What pushes a St. Helena price toward the top of a range is usually the condition of older flex-duct additions from mid-century retrofits, which tear more easily and sometimes need replacement rather than cleaning, plus roof-terminated dryer vents that require ladder work. Whatever the number, it’s in writing before we start, and the invoice matches it at the end.
Neighborhoods We Serve in St. Helena
We work across the whole St. Helena area, from the historic grid near Main Street out to the vineyard-adjacent properties on the valley edges. Most jobs are scheduled within the week, and we work around nap schedules when kids are in the house.
- Downtown St. Helena and the Historic District
- Homes off Spring Mountain Road
- Silverado Trail corridor
- Zinfandel Lane and the west valley floor
- Deer Park and the eastern hillsides
Service Area – Cities Near St. Helena
Our crews serve St. Helena directly, with scheduling and dispatch coordinated from our Los Angeles office. For homes elsewhere in the Bay Area and beyond, we also serve San Francisco, CA, San Jose, CA, Los Angeles, CA, and San Diego, CA.
Serving St. Helena, CA - Our Local Coverage Area
We’re based in the St. Helena area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning Company in St. Helena
Most St. Helena jobs are scheduled within five to seven business days. If you’re flexible on morning or afternoon arrival, we can often fit you in sooner. Call (323) 918-4345 and we’ll give you a specific date before you hang up.
No. Duct and dryer vent cleaning is interior work on your own system, so no city permit or HOA approval is required anywhere in St. Helena. If your dryer vent terminates on a shared wall in a multi-unit building, we’ll check access before we start.
Yes, and we see it regularly. Homes adjacent to vineyard blocks, especially along Spring Mountain Road and Silverado Trail, often show a yellowish residue on return plenums and duct interiors that builds up within a single spray season. It’s one of the reasons cleaning here looks different than in non-wine-country cities.
Call (323) 918-4345 for a written quote on air duct or dryer vent cleaning in St. Helena. The price you’re quoted is the price you’ll pay, and the 365-Day Done Right Promise backs the work.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What St. Helena Customers Say
"New house, old dusty ducts. They were gentle in the house, laid down drop cloths, and double checked every register was sealed back up. Air smells fresh now."
- Scott Hemmings"Friendly, calm crew that clearly cared about the house. Covered their shoes, protected the floors, and double checked they'd closed up every vent cover properly. Would have them back."
- Omar Zaid"Ducts and dryer vent both. They put runners down the whole hall and wore booties. Spotless after, and they showed me photos of what came out. Worth every penny."
- Bonnie Vo